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Formula: Pb2Mn3+(V5+O4)2(OH)
Hydrated normal vanadate,
manganese-bearing mineral,
brackebuschite supergroup
Specific gravity: 6.05
Hardness: 4 to 5
Streak: Yellow
Colour: Dark brown to black, reddish brown in transmitted light
Environments:
Brackebuschite is a rare secondary mineral in the oxidised zone of
hydrothermal lead-zinc deposits. Associated
minerals include descloizite,
vanadinite, wulfenite and
cerussite
(HOM, Mindat).
Localities
At the type locality, the Venus mine, Venus Pb-Zn deposit, El Guaico mining district, Sierra de Córdoba, Punilla Department, Córdoba
Province, Argentina, brackebuschite occurs in oxidised hydrothermal veins in a
lead-zinc deposit, associated with
descloizite and vanadinite
(Dana, Mindat).
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